diff options
Diffstat (limited to 'gnu/build')
| -rw-r--r-- | gnu/build/file-systems.scm | 27 | ||||
| -rw-r--r-- | gnu/build/install.scm | 5 | ||||
| -rw-r--r-- | gnu/build/marionette.scm | 87 | ||||
| -rw-r--r-- | gnu/build/vm.scm | 16 |
4 files changed, 112 insertions, 23 deletions
diff --git a/gnu/build/file-systems.scm b/gnu/build/file-systems.scm index 0d55e91978..431b287d0c 100644 --- a/gnu/build/file-systems.scm +++ b/gnu/build/file-systems.scm @@ -464,6 +464,27 @@ form: DEVICE, MOUNT-POINT, and TYPE must be strings; OPTIONS can be a string or #f; FLAGS must be a list of symbols. CHECK? is a Boolean indicating whether to run a file system check." + + (define (mount-nfs source mount-point type flags options) + (let* ((idx (string-rindex source #\:)) + (host-part (string-take source idx)) + ;; Strip [] from around host if present + (host (match (string-split host-part (string->char-set "[]")) + (("" h "") h) + ((h) h))) + (aa (match (getaddrinfo host "nfs") ((x . _) x))) + (sa (addrinfo:addr aa)) + (inet-addr (inet-ntop (sockaddr:fam sa) + (sockaddr:addr sa)))) + + ;; Mounting an NFS file system requires passing the address + ;; of the server in the addr= option + (mount source mount-point type flags + (string-append "addr=" + inet-addr + (if options + (string-append "," options) + ""))))) (match spec ((source title mount-point type (flags ...) options check?) (let ((source (canonicalize-device-spec source title)) @@ -481,7 +502,11 @@ run a file system check." (call-with-output-file mount-point (const #t))) (mkdir-p mount-point)) - (mount source mount-point type flags options) + (cond + ((string-prefix? "nfs" type) + (mount-nfs source mount-point type flags options)) + (else + (mount source mount-point type flags options))) ;; For read-only bind mounts, an extra remount is needed, as per ;; <http://lwn.net/Articles/281157/>, which still applies to Linux 4.0. diff --git a/gnu/build/install.scm b/gnu/build/install.scm index 3d1594e203..5c2b35632d 100644 --- a/gnu/build/install.scm +++ b/gnu/build/install.scm @@ -46,6 +46,11 @@ Note that the caller must make sure that GRUB.CFG is registered as a GC root so that the fonts, background images, etc. referred to by GRUB.CFG are not GC'd." (install-grub-config grub.cfg mount-point) + + ;; Tell 'grub-install' that there might be a LUKS-encrypted /boot or root + ;; partition. + (setenv "GRUB_ENABLE_CRYPTODISK" "y") + (unless (zero? (system* "grub-install" "--no-floppy" "--boot-directory" (string-append mount-point "/boot") diff --git a/gnu/build/marionette.scm b/gnu/build/marionette.scm index d36e1c8d09..506d6da420 100644 --- a/gnu/build/marionette.scm +++ b/gnu/build/marionette.scm @@ -21,10 +21,13 @@ #:use-module (srfi srfi-26) #:use-module (rnrs io ports) #:use-module (ice-9 match) + #:use-module (ice-9 popen) #:export (marionette? make-marionette marionette-eval marionette-control + marionette-screen-text + wait-for-screen-text %qwerty-us-keystrokes marionette-type)) @@ -45,7 +48,10 @@ (command marionette-command) ;list of strings (pid marionette-pid) ;integer (monitor marionette-monitor) ;port - (repl marionette-repl)) ;port + (repl %marionette-repl)) ;promise of a port + +(define-syntax-rule (marionette-repl marionette) + (force (%marionette-repl marionette))) (define* (wait-for-monitor-prompt port #:key (quiet? #t)) "Read from PORT until we have seen all of QEMU's monitor prompt. When @@ -131,21 +137,29 @@ QEMU monitor and to the guest's backdoor REPL." (close-port monitor) (wait-for-monitor-prompt monitor-conn) (display "read QEMU monitor prompt\n") - (match (accept* repl) - ((repl-conn . addr) - (display "connected to guest REPL\n") - (close-port repl) - (match (read repl-conn) - ('ready - (alarm 0) - (display "marionette is ready\n") - (marionette (append command extra-options) pid - monitor-conn repl-conn))))))))))) + + (marionette (append command extra-options) pid + monitor-conn + + ;; The following 'accept' call connects immediately, but + ;; we don't know whether the guest has connected until + ;; we actually receive the 'ready' message. + (match (accept* repl) + ((repl-conn . addr) + (display "connected to guest REPL\n") + (close-port repl) + ;; Delay reception of the 'ready' message so that the + ;; caller can already send monitor commands. + (delay + (match (read repl-conn) + ('ready + (display "marionette is ready\n") + repl-conn)))))))))))) (define (marionette-eval exp marionette) "Evaluate EXP in MARIONETTE's backdoor REPL. Return the result." (match marionette - (($ <marionette> command pid monitor repl) + (($ <marionette> command pid monitor (= force repl)) (write exp repl) (newline repl) (read repl)))) @@ -160,6 +174,55 @@ pcsys_monitor\")." (newline monitor) (wait-for-monitor-prompt monitor)))) +(define* (marionette-screen-text marionette + #:key + (ocrad "ocrad")) + "Take a screenshot of MARIONETTE, perform optical character +recognition (OCR), and return the text read from the screen as a string. Do +this by invoking OCRAD (file name for GNU Ocrad's command)" + (define (random-file-name) + (string-append "/tmp/marionette-screenshot-" + (number->string (random (expt 2 32)) 16) + ".ppm")) + + (let ((image (random-file-name))) + (dynamic-wind + (const #t) + (lambda () + (marionette-control (string-append "screendump " image) + marionette) + + ;; Tell Ocrad to invert the image colors (make it black on white) and + ;; to scale the image up, which significantly improves the quality of + ;; the result. In spite of this, be aware that OCR confuses "y" and + ;; "V" and sometimes erroneously introduces white space. + (let* ((pipe (open-pipe* OPEN_READ ocrad + "-i" "-s" "10" image)) + (text (get-string-all pipe))) + (unless (zero? (close-pipe pipe)) + (error "'ocrad' failed" ocrad)) + text)) + (lambda () + (false-if-exception (delete-file image)))))) + +(define* (wait-for-screen-text marionette predicate + #:key (timeout 30) (ocrad "ocrad")) + "Wait for TIMEOUT seconds or until the screen text on MARIONETTE matches +PREDICATE, whichever comes first. Raise an error when TIMEOUT is exceeded." + (define start + (car (gettimeofday))) + + (define end + (+ start timeout)) + + (let loop () + (if (> (car (gettimeofday)) end) + (error "'wait-for-screen-text' timeout" predicate) + (or (predicate (marionette-screen-text marionette #:ocrad ocrad)) + (begin + (sleep 1) + (loop)))))) + (define %qwerty-us-keystrokes ;; Maps "special" characters to their keystrokes. '((#\newline . "ret") diff --git a/gnu/build/vm.scm b/gnu/build/vm.scm index cc5cf45362..60ee18ebe0 100644 --- a/gnu/build/vm.scm +++ b/gnu/build/vm.scm @@ -79,12 +79,9 @@ it via /dev/hda. REFERENCES-GRAPHS can specify a list of reference-graph files as produced by the #:references-graphs parameter of 'derivation'." - (define image-file - (string-append "image." disk-image-format)) - (when make-disk-image? (unless (zero? (system* "qemu-img" "create" "-f" disk-image-format - image-file + output (number->string disk-image-size))) (error "qemu-img failed"))) @@ -115,7 +112,7 @@ the #:references-graphs parameter of 'derivation'." builder) (append (if make-disk-image? - `("-drive" ,(string-append "file=" image-file + `("-drive" ,(string-append "file=" output ",if=virtio")) '()) ;; Only enable kvm if we see /dev/kvm exists. @@ -126,11 +123,10 @@ the #:references-graphs parameter of 'derivation'." '())))) (error "qemu failed" qemu)) - (if make-disk-image? - (copy-file image-file output) - (begin - (mkdir output) - (copy-recursively "xchg" output)))) + ;; When MAKE-DISK-IMAGE? is true, the image is in OUTPUT already. + (unless make-disk-image? + (mkdir output) + (copy-recursively "xchg" output))) ;;; |